Problem with the php.ini

I have a server in Debian, I need to enable extensions

php_pdo_mysql 
php_pdo

I have seen that I have several php.ini files, apparently the server has zendserver installed. Run php --ini and it appears:

Configuration File (php.ini) Path: /etc/php5/cli Configuration File (php.ini) Path: /etc/php5/cli
Loaded Configuration File: /etc/php5/cli/php.ini
Scan for additional .ini files in: /etc/php5/cli/conf.d
Additional .ini files parsed: /etc/php5/cli/conf.d/05-opcache.ini,
/etc/php5/cli/conf.d/10-pdo.ini, 
/etc/php5/cli/conf.d/20-mssql.ini,
/etc/php5/cli/conf.d/20-pdo-dblib.ini,
/etc/php5/cli/conf.d/20-readline.ini 

However on my page phpinfo () it shows me that the php.ini arcivo in use is different.

Loaded Configuration File   /usr/local/zend/etc/php.ini

link